How to give an openVPN client an IP from a predefined pool?

Question

openvpn

Server config:

port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key
dh dh.pem
duplicate-cn
server 10.8.0.0 255.255.255.0
route 10.8.1.0 255.255.255.0
route 10.8.2.0 255.255.255.0
client -config-dir "C:\\Program Files\\OpenVPN\\client-conf\\"
crl-verify "C:\\Program Files\\OpenVPN\\easy-rsa\\pki\\crl.pem"
keepalive 10 120
comp-lzo
persist-key
persist-tun
status openvpn-status.log
verb 3

There is a client configuration Administrator

ifconfig-push 10.8.1.1 10.8.1.2

Following which a tunnel is built for cn Administrator 10.8.1.1 <> 10.8.1.2

How can I set a pool of two addresses so that when the second client with cn Administrator connects, he would get the local address 10.8.1.3 and the remote 10.8.1.4

Answer 1

prohibit duplicate connections, give each user a specific address, fixed from the server side.